Solve the following. 1. A number added to 2 is - 3. Find the number. ​

Answer: \(-6, 0, 14\)

Step-by-step explanation:

\(f(2)=2^2 - 3(2)-4=-6\\\\f(4)=4^2 -3(4)-4=0\\\\f(-3)=(-3)^2 -3(-3)-4=14\)

Answer:

5782

Step-by-step explanation:

td j envalentonado 8jdjdyzh d

The answers to each part is below..

Given is a graph as shown in the image.

Therefore, the answers to each part is given above.

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The answer is 12 or option (d)

I took the test~ good luck!

The characteristic that does not apply to a theoretical normal distribution is C) It is bimodal.

The main answer is C. An explanation for this is that a normal distribution has a single peak at the mean, and as we move away from the mean in either direction, the frequency of occurrence decreases.

Therefore, a normal distribution can never have two distinct peaks, making it impossible for it to be bimodal. All other options are characteristics of a normal distribution. In conclusion, a theoretical normal distribution is never negative, bell-shaped, and has equal mean, median, and mode, but it is not bimodal.

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Answer: 8.715/liter

Step-by-step explanation:

one gallon is roughly 3.785 liters so to find the cost per litter we need to divide the cost per gallon by how many liters are in a gallon

32.99/gallon = is around 8.715/liter

keep in mind this is a rough estimate because there are actually 3.78541 liters in a gallon but I rounded to 3.785.

I hope this helps you!!!

Given the right triangle:

The Pythagorean theorem states that:

From the problem, we identify:

And a is our missing value. Using the Pythagorean theorem:

Given :

The original price of the candy = $10

Answer:

Step-by-step explanation:

false

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Explanation:

Consider something like 2b+6 factoring to 2(b+3). When we distribute that outer 2 back inside the parenthesis, we're multiplying that 2 by everything inside. Factoring goes in reverse of this and we divide each term of 2b+6 by the GCF 2.

The same thing applies to this current problem as well.

Divide each term by the -1.8 we want to factor out.

The results -2b and 5 will go inside the parenthesis. That's how we end up with -1.8(-2b+5)

You can use distribution to verify this

-1.8(-2b+5)

-1.8*(-2b) - 1.8*(5)

3.6b - 9

Rounding to three decimal places, the 99% confidence interval estimate for the population proportion is approximately 0.138 to 0.362.

To compute the 99% confidence interval estimate for the population proportion, we can use the formula:

Confidence Interval = Sample Proportion ± (Critical Value * Standard Error)

First, we need to find the critical value from the table for a 99% confidence level. The critical value for a 99% confidence level is approximately 2.576.

Next, we calculate the standard error using the formula:

Standard Error = sqrt((Sample Proportion * (1 - Sample Proportion)) / Sample Size)

Plugging in the values, we get:

Standard Error = sqrt((0.25 * (1 - 0.25)) / 100) ≈ 0.0433

Now we can calculate the confidence interval:

Confidence Interval = 0.25 ± (2.576 * 0.0433) ≈ 0.25 ± 0.1116

Rounding to three decimal places, the 99% confidence interval estimate for the population proportion is approximately 0.138 to 0.362.

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Answer:

$7.50

Step-by-step explanation:

$50 x .15 = $7.50

$7.50 estimated to nearest cent is $7.50

Number of students should be sampled to be within 0.5 drink of population mean with 95% probability is 617 students.

To determine the sample size required to estimate the population mean with a given level of precision, we can use the formula for the margin of error

Margin of error = Z × (standard deviation / sqrt(sample size))

where Z is the critical value of the standard normal distribution corresponding to the desired level of confidence. For a 95% confidence level, Z is 1.96.

We want the margin of error to be no more than 0.5 drinks, so we can set up the equation

0.5 = 1.96 × (6.3 / sqrt(sample size))

Solving for the sample size, we get

sqrt(sample size) = 1.96 × 6.3 / 0.5

sqrt(sample size) = 24.82

sample size = (24.82)^2

sample size = 617

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2 - 300 calories

3 - 1260 calories

6 - 20g

7 - 70mg

Answer:

$102.00

Step-by-step explanation:

Simply multiply 68 by 50 percent

68 × 50% or 68 × .5 = 34

so . .

Add 68 + 34 = 102  

The goal of a hypothesis test is to determine if the data can refuse an assumption a parameter or a population.

Statistical hypothesis test: A statistical hypothesis test is a technique for determining whether the available data are sufficient to support a specific hypothesis. We can make probabilistic claims about population parameters through hypothesis testing.

The purpose of a hypothesis test is to ascertain whether the data can refute a parameter or population assumption.

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Answer:

The answer is

C. The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.

Step-by-step explanation:

In mathematics, mapping is used synonymously to a function, and a function is basically a relation between two values or expressions say y and x

like the difference equation relating y and x.

In a function, for every value of x plugged into the function there is always a corresponding value of y.

Example.

Given the function

y=2x+5.

find the value of y when x=0

we are going to substitute x=0 and solve

y=2(0)+5

y=5

so for x=0 y=5

Answer:

C. n^3 - 16 = 48

The probability of the total being equal to 8 is 1/9 or 11.11%.

To calculate this probability, we must first calculate all the possible combinations of two six-sided dice that add up to 8. Since both the dice are showing an even number, the possible combinations are (2, 6), (4, 4), and (6, 2). the total number of possible combinations for two six-sided dice is 36 (6 x 6). Therefore, the probability of the total being equal to 8 is 3/36 or 1/9 or 11.11%.

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i only know the sceond on and its 100

Answer:

Function f is defined by the equation f(x)=y?. this isn't a thing

i believe you mean... Function f is defined by the equation f(x) = x².

What is f(2)?

What is f(3)?

in which case the answer is The value of f(2) and f(3) for the given functions are 4 and 9 respectively.

The given function is f(x)=x².

What is the function?

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

We need to find the value of f(2) and f(3)

Put x=2 in the given function, we get

f(2)=2²

= 4

Put x=3 in the given function, we get

f(3)=3²

= 9

Hence, the value of f(2) and f(3) for the given functions are 4 and 9 respectively.

we will choose the negative sign. ∴ sin 75 = -√[1-(-√3/2) / 2]= -√[(2+√3) / 4]= -√2/2 - √6/4 + √3/4Ans: The exact value of sin 75° is -√2/2 - √6/4 + √3/4.

We are to find an expression for the exact value of sin 75°. As we know that 75° is half of 150°. So, we can use half-angle formula of sin to get the expression for sin 75°.Half-angle formula for sin: sin (θ/2) = ±√[1-cosθ/2] / 2We need to choose the sign of the square root according to the quadrant in which the angle lies. Let's first find cos 150° using sum formula of cos. cos (A+B) = cosA cosB - sinA sinB cos 150 = cos (90+60) = cos 90 cos 60 - sin 90 sin 60= 0 * 1 - 1 * √3/2= -√3/2Now, using half-angle formula for sin 75°sin 75 = ±√[1-cos150/2] / 2We know that 75° lies in the second quadrant where sine is negative. Therefore, we will choose the negative sign.

∴ sin 75 = -√[1-(-√3/2) / 2]= -√[(2+√3) / 4]= -√2/2 - √6/4 + √3/4Ans: The exact value of sin 75° is -√2/2 - √6/4 + √3/4.

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Answer:

(-1,3)

Step-by-step explanation:

Answer:

Yes, because for each value of x there is only one y.

The probability that Rob completes the race successfully is:

1 - 0.1 - 0.09 + 0.02 = 0.83

The probability of getting an odd number or a number divisible by 4 can be found by adding the probabilities of getting an odd number and a number divisible by 4, and subtracting the probability of getting a number that is both odd and divisible by 4 (which is 4). The probabilities of getting an odd number, a number divisible by 4, and a number that is both odd and divisible by 4 are:

Odd number: There are 6 odd numbers out of 12 total numbers, so the probability of getting an odd number is 6/12 = 1/2.

Number divisible by 4: There are 3 numbers divisible by 4 (4, 8, 12), so the probability of getting a number divisible by 4 is 3/12 = 1/4.

Number that is both odd and divisible by 4: The only number that is both odd and divisible by 4 is 4, so the probability of getting this number is 1/12.

Therefore, the probability of getting an odd number or a number divisible by 4 is:

1/2 + 1/4 - 1/12 = 5/12

The probability of getting a red face or a white face can be found by adding the probabilities of getting a red face and a white face. The probability of getting a red face is 2/6 = 1/3, and the probability of getting a white face is also 1/3. Therefore, the probability of getting a red face or a white face is:

1/3 + 1/3 = 2/3

To find the probability that Rob completes the race successfully, we need to subtract the probability of getting a flat tire, the probability of the chain breaking, and the probability of both occurring from 1 (the probability of completing the race successfully). The probability of getting a flat tire is 0.1, the probability of the chain breaking is 0.09, and the probability of both occurring is 0.02. Therefore, the probability that Rob completes the race successfully is:

1 - 0.1 - 0.09 + 0.02 = 0.83

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To find the polynomial for the total electricity generated by both geothermal and wind power during 2002-2007, we simply add the two given polynomials. This gives us:

(19x - 186x + 14,480) + (845x² - 76x + 10,193) = 845x² - 167x + 24,673

Therefore, the polynomial for the total electricity generated by both geothermal and wind power during 2002-2007 is 845x² - 167x + 24,673.

This polynomial represents the total electricity generated (in gigawatts) by both geothermal and wind power during the six-year period from 2002 to 2007, where x represents the number of years after 2002.

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Answer:

$30

Step-by-step explanation:

3/3 - 1/3 = 2/3

The fraction shows how much she has left.

2/3 = $20

1/3 = $20 ÷ 2 = $10

3/3 = $10 x 3 = $30

Answer:

im pretty sure its true

Step-by-step explanation:

so sorry if its wrong, hope it helps!